Picked up a few insulators, and the casing of a wall phone (still has the circuit diagram on the door) for $4.00 today. Among the insulators was a Hemi #12 with prisim lettering, 2 CD 102 Brookfields, and the best thing: 2 CD 106 OVG's. There's no doubt about it now. It appears CD 106 OVG's were used in my area of the county. That makes 5 i've found now.